ATE247537T1 - HANDLE DRILL - Google Patents

HANDLE DRILL

Info

Publication number
ATE247537T1
ATE247537T1 AT98304288T AT98304288T ATE247537T1 AT E247537 T1 ATE247537 T1 AT E247537T1 AT 98304288 T AT98304288 T AT 98304288T AT 98304288 T AT98304288 T AT 98304288T AT E247537 T1 ATE247537 T1 AT E247537T1
Authority
AT
Austria
Prior art keywords
drill bit
flute
web
tip
handle drill
Prior art date
Application number
AT98304288T
Other languages
German (de)
Inventor
Rickey J Thomas
Original Assignee
Black & Decker Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Black & Decker Inc filed Critical Black & Decker Inc
Application granted granted Critical
Publication of ATE247537T1 publication Critical patent/ATE247537T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/04—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/404—Flutes, i.e. chip conveying grooves with decreasing depth in a direction towards the shank from the tool tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/60—Drills with pilots
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/905—Having stepped cutting edges
    • Y10T408/906—Axially spaced
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097—Spiral channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

A twist drill bit (10) comprises a shank portion (12), a flute portion (14) containing two flutes (16) and a tip portion (18). The flute portion (14) defines a web, wherein the web has a predetermined web thickness (T) adjacent the tip which increases from the tip portion (18) in an axial direction along the drill bit at a uniform taper rate in the range of 0.5 to 0.071 centimetres per centimetre of flute length. A process of forming such a drill bit (10) is also disclosed. <IMAGE>
AT98304288T 1997-05-29 1998-05-29 HANDLE DRILL ATE247537T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4801697P 1997-05-29 1997-05-29

Publications (1)

Publication Number Publication Date
ATE247537T1 true ATE247537T1 (en) 2003-09-15

Family

ID=21952304

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98304288T ATE247537T1 (en) 1997-05-29 1998-05-29 HANDLE DRILL

Country Status (8)

Country Link
US (2) US6050754A (en)
EP (1) EP0893185B1 (en)
CN (1) CN1107566C (en)
AT (1) ATE247537T1 (en)
CA (1) CA2239240C (en)
DE (1) DE69817276T2 (en)
DK (1) DK0893185T3 (en)
ES (1) ES2201412T3 (en)

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DE69817276T2 (en) * 1997-05-29 2004-02-19 Black & Decker Inc., Newark twist drill
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US6443674B1 (en) 2000-05-19 2002-09-03 Ics Cutting Tools, Inc. Self-centering twist drill having a modified flat bottom section and a helical crown point tip
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US6431962B1 (en) 2000-10-05 2002-08-13 Kennametal Inc. Method and apparatus for making a cutting tool having a flute
US6602029B1 (en) 2000-10-05 2003-08-05 Kennametal Inc. Cutting tool and method and apparatus for making the same
US6419561B1 (en) 2000-10-05 2002-07-16 Kennametal Inc. Method and apparatus for making a cutting tool having a plurality of margins
US11337728B2 (en) 2002-05-31 2022-05-24 Teleflex Life Sciences Limited Powered drivers, intraosseous devices and methods to access bone marrow
US8641715B2 (en) 2002-05-31 2014-02-04 Vidacare Corporation Manual intraosseous device
US11298202B2 (en) 2002-05-31 2022-04-12 Teleflex Life Sciences Limited Biopsy devices and related methods
WO2008033872A2 (en) * 2006-09-12 2008-03-20 Vidacare Corporation Biopsy devices and related methods
US10973545B2 (en) 2002-05-31 2021-04-13 Teleflex Life Sciences Limited Powered drivers, intraosseous devices and methods to access bone marrow
WO2003101306A1 (en) 2002-05-31 2003-12-11 Vidacare Corporation Apparatus and method to access the bone marrow
US8668698B2 (en) 2002-05-31 2014-03-11 Vidacare Corporation Assembly for coupling powered driver with intraosseous device
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US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
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DE102007050050A1 (en) * 2007-10-17 2009-04-23 Kennametal Inc. Concentric tool, especially drills
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US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
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KR20130032671A (en) * 2011-09-23 2013-04-02 대구텍 유한회사 Drilling tool for composite material
US9656331B2 (en) * 2011-11-15 2017-05-23 Kennametal Inc. System and method for simultaneously forming flutes in solid carbide tools
US9579732B2 (en) 2012-07-18 2017-02-28 Milwaukee Electric Tool Corporation Hole saw
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit
CN104174904A (en) * 2013-05-21 2014-12-03 苏州锑玛精密机械有限公司 High-precision inner-cooling drill
CN104174907A (en) * 2013-05-21 2014-12-03 苏州锑玛精密机械有限公司 Internal cooling drill
DE112014002733B4 (en) 2013-06-06 2022-09-08 Milwaukee Electric Tool Corporation step drill
EP2842673B1 (en) 2013-08-29 2018-11-21 Black & Decker Inc. Drill bit
DE102014212714B4 (en) 2014-07-01 2022-02-17 Kennametal Inc. drill head
CN209849949U (en) * 2018-01-29 2019-12-27 米沃奇电动工具公司 Drill bit
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit
CN110605425A (en) * 2018-06-15 2019-12-24 上海惠而顺精密工具股份有限公司 Hard alloy printed circuit board candle drill
WO2019244106A1 (en) 2018-06-22 2019-12-26 Maestro Logistics, Llc A drill bit and method for making a drill bit
WO2020014340A1 (en) 2018-07-10 2020-01-16 Milwaukee Electric Tool Corporation Hole saw with hex sidewall holes
CN209157232U (en) * 2018-10-09 2019-07-26 米沃奇电动工具公司 Drill bit
CN112077370A (en) 2019-06-13 2020-12-15 肯纳金属印度有限公司 Indexable drill insert
USD958855S1 (en) 2019-12-09 2022-07-26 Milwaukee Electric Tool Corporation Hole saw
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Also Published As

Publication number Publication date
EP0893185A1 (en) 1999-01-27
DE69817276D1 (en) 2003-09-25
CA2239240A1 (en) 1998-11-29
ES2201412T3 (en) 2004-03-16
US6190097B1 (en) 2001-02-20
EP0893185B1 (en) 2003-08-20
CA2239240C (en) 2005-08-09
DE69817276T2 (en) 2004-02-19
US6050754A (en) 2000-04-18
CN1107566C (en) 2003-05-07
DK0893185T3 (en) 2003-09-08
CN1223184A (en) 1999-07-21

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